General description This cobalt variable pitch hole saw is designed for durability and precision. Made from high-quality steel with 8% cobalt content, it is suitable for cutting a variety of materials including steel, brass, bronze, cast iron, aluminium, wood, and plastics. The maximum cutting depth is 35mm, making it ideal for various DIY and home improvement projects. It is packaged for display and easy access. Technical specifications Material: Steel with 8% cobalt content Suitable for cutting: Steel, brass, bronze, cast iron, aluminium, wood, plastics Maximum cutting depth: 35mm Compatibility and accessories Compatible with standard drill chucks Suitable for use with various drill types and sizes Installation Insert the hole saw into a compatible drill chuck Ensure the drill is set to the appropriate speed for the material being cut Usage Mark the area to be cut Secure the material to prevent movement during cutting Start drilling at a slow speed, then increase as needed Apply